Tempo-indicator.



t: Inventor:

Fmwm's 11.701 1. 1 I j @m M No. 819,118. PATENTED MAY 1, 1906. 1". L. 110111111.

1 TEMPO 111111011011.

APPLICATION F ILED MAR. Z4, 1905.

3 SHEETS-SHEET 1.

WIM-

PATENTED' MAY 1, 1906.

P. L. YOUNG.

TEMPO INDICATOR.

Inventor FRANC 5 NC:

' @Lm k PATENTBD. MAY 1, 1906 F. L. YOUNG.

TEMPO INDICATOR.

APPLICATION FILED MAR 24 190 3 SHEETS-SHEET 3,

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. zthefollowing is a specification. I My invention relates totempo-iudicators UNITED srA'rRs PATENT OFFICE. A

FRANCIS L- YOUNG, OF NEW YORK, N. Y ASSIGNOR TO rnn A'EOLIAN' O MPANY, OF'NEW YORK, N. Y., A CORPORATION OF CONNECTICUT.

, TEMP -INDICATOR.

To all whom it may concern:

Be it known .that I, FRANCIS L; YOUNG, a citizen of the United States, and a resident of Brooklyn, in the cityand State of New York, 5 have invented certain new and useful In provements in Tempo-Indicators, of which for mechanical musical inst urnents.

i It is common in mechanical musical instruments, which of course includes mechanical players for keyboard" musical instruments which are separate from the instrument itself, to p:.-ovid e means for modifying the tempo by alt'e; ing the speed at which the music-roll is ntoved over the t'rackerboard.

Such a dcviceis usually manually actuated.

by a lever extending to a convenient point for grasping by the hand ofthe operator or player. It is also custon". my to provide a tempo-scale adjacent such lever, the lever being provided with a pointer adapted to move over or adjacent the scale, so as to in dicate the time. The scale is comrr.only marked with a series of numerals representing the nurr. ber' of beats to the rrinute. .It is also customary, as shown-e. g., inUnited States Patent No. 692,968, granted on rry a plication February 11, 1902- provide musical instruments with a tempo-line-that is, a line indicating the speed at which the sheet is to be moved over the tracker-and to provide on the actuating-lever a pointer line.

My present device unites in a single manually-'actuatin means pointers for moving over the trac er-board, or rather over the music-sheet thereon, and for moving over the graduated scale. 'By this means a musician may regulate the tempo either by-the' line marked on the music-roll or'metronon" ically, according to his'taste and fancy.

In the drawings, Figure 1 is a front elevation of so much of a mechanical musical instrument as is necessary to illustrate rry invention. Fig. 2 is a vertical section through the line 2 2, Fig. 12" Fig. 3 is a'sirhilar vertical section through the line 3 3, Fig. 1. .Fig. 4is. an inverted' plenviewof Fig. 2, one portion being removed for clearness of illustration.

' Specification of Letters Patent. 2

Application filedMarch 24,1906. .Serial No. 251.731.

t e music-sheets used on such echanical' adapted to move. over or adjacent'to this Patented. May 1, 1906."

1 designates a tracker, shown as supported between brackets or supports 11 and as provided with the usual ducts 12. The brackets or supports 11 are provided with cheeks 13 for engaging the music-roll 14, on which is wound the sheet 15. Between the brackets 11 is alsosupported the winding-101116, by the rotation of which the n'usic is moved over the tracker 1.. A rod 21, passing between the supports 11 in front of the ZOll 16, carries a graduatedmet: onon' ic scale 2.

3 designates. a tempo-controlling ntea'ns which, as many such rreans are well known in the art and as it per se-foyrrs no part of n y present invention, I have not deenied it necessary to fully illustrate. A rod 31, leading from the device 3, extends to a swinging lever 32, which is intuinconn'ected by a link 33 to a vertically-disposed bar 34, which is provided with an upper pointer 35 adjacent shown the pointer 35 passes behind the scale" 2, while the pointer 36 passes in front of the scale. The pointer 35 is shown as curved to permit the passage therebetween of the rrusic-sheet 15. The lever 34 isprovided with a handle 37, by which it may be laterconvenience the bar 34 may be H ads in two parts,-as is clearly shown in Figs. 2 and 3 of the drawings, these two parts being riveted together and one of them having a rearwardly extending portion 38, adapted topreferably lined with strips 42, of felt or the like, to prevent noise. Secured to thelower end of the bar 34 is a guide 43, shown as a rod passing between and guided by pairs of idler-pulleys 44, suitably rrount'ed on the part of the instrument.

The operation of my device will be clearly understood froman inspection of the drawings. It will be seen that the lever 32 is pivoted at its lower end, (not shown) so as to swing laterally, and that the bar 34, having laterally without swinging motion guided by the block 4 and the rod 43, as shown in the drawings. The pointer 35 is shown as extending over the music-sheet immediately and as spaced away from the tracker 1, so as I above therow of ducts 12 of the tracker 1,

the tracker-board land with a second pointer;

36 adjacent the scale 2. In the construct-ion F ally moved by the hand of the operator. Fog.

traverse a slot 41 in a block 4, the slot being link connection therewith, is adapted to move tions on the scale 2.

While the pointer 36 moves over the gradua- It is evident that by moving the pointer 35 in a direct lateral line i. e., in. a line exactly transverse of the music-sheet-greater accuracy in following the tempo-line on the sheet is possible than can be secured where the pointer moves in the arc of a circle, as heretofore. Moreover, both the ointers and the handle 37 will move in parallel straight lines and to equal distances.

By the phrase tempo-line as applied to the music-sheet I of course include any continuous or discontinuous mark or series of marks or indications with which the player or operator is enabled to guide the indicating device.

What I claim is- 1. In a mechanical musical instrument, a tracker, means or moving a music-sheet over said tracker, a tempo-scale mounted in a plane in front-of said tracker, and a bar guided to move laterally in front of said tracker and behind said scale and having a pointer in front of said tracker and a second pointer in front of said scale.

2. In a mechanical musical instrument, a tracker, music-sheet, means for moving the sheet over the tracker, and a manually-actu ated tempo-modifying means, the improved tempo indicator thereof having a sliding mounting combining a slide-bar,'fricti0n-reducing rollers therefor, a rearwardly-extending member and a slot or guide in which said member runs.

3. In a mechanical musical instrument, a tracker, music-sheet, means for moving the sheet over the tracker, and a manually-actutempo-indicator thereothaving a scale, a

pointer for said scale, a second pointer exmove in parallel allel paths respectively in front of and behind the said scale. a

4. In a mechanical musical instrument, a tracker, music-sheet, means for moving the sheet over the tracker, and a manually-'actuated tempo-modifying means, the improved tempo -indicator thereof having a scale, a combined handle and pointer cooperating with said scale, guides on which the said handle is mounted'to slide in a rectilinear path, and a.pointer extending over the music-roll and connected to move in a rectilinear path parallel with said handle.

5. In a mechanical musicalinstrument, a tracker, music-sheet, means for moving the sheet over the tracker, and a manually-actuated tempo-modifying means, the improved tem o-indicator thereof having a pointer exten ing over the music-sheet, a control-hendle connected for moving the said indicator and the other parts of the tempo-modifying means, and means for guiding the said handle and the said pointer to move in parallel rec tilinear paths, the said handle and said pointer being connected to move equally in their respective paths.

6. In a mechanical musical instrument, a tracker, music-sheet, means for moving the sheet over the tracker, and a manually-actuated tempo-modifying means, the improved tempo-indicator thereof having two pointers, one extending over the mnsic-sheet-for cooperation With tempo-indicators thereon, a

sea e with which the other cooperates, guidingmeans for uiding the two pointers to straight lines, and connections between them and the other parts of the tempo-modifying means. ated tempo-modifying means, the improved In testimony whereof I have signed this specification in the presence of two subscribmg Witnesses.

FRANCIS L. YOUNG. Witnesses:

D.C.HE1Ns, E. C. THOMESON. 

